Is Windows 10 Pro worth it?

Is it worth your money to have Windows 10 Pro if you don't have it yet?
Most consumers buying or building a Windows 10 PC will be coming across either the "Home" or "Pro" versions of the operating system. Many might not notice, nor care which they're on so long as it's Windows 10 and it does whatever they want it to do.
For some, however, Windows 10 Pro will be a must have, and if it doesn't come with the PC you buy you'll be looking to upgrade, at a cost.
So, is it worth it for you?